louis.dartez@LIGO.ORG - posted 19:21, Monday 11 March 2024 - last comment - 10:33, Wednesday 13 March 2024(76271)
Updated Calibration for CAL_DELTAL_EXTERNAL
J. Kissel, L. Dartez Jeff ran the calibration measurement suite. We processed it according to the instructions here. I then updated theCAL_DELTAL_EXTERNALcalibration using the new report at/ligo/groups/cal/H1/reports/20240311T214031Z.
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Attaching the cal report. Optical gain: 2024-03-12: 3.322e+06 [DARM ERROR counts / meter] 2023-10-27: 3.34e+06 [DARM ERROR counts / meter] KappaC at the end of O4a: 1.006 Optical gain at end of O4a: 3.336e6 [DARM ERROR counts / meter] So the current optical gain is differs from what we had at the end of O4a by about 0.4%.
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The calibration from this report has now been added to the LDAS cluster archive such that it shows up in the official infrastructure.
It's location is
https://ldas-jobs.ligo-wa.caltech.edu/~cal/?report=20240311T214031Z
It was tagged as "valid" and "exported" as follows:
On a local control room workstation (or on whichever computer system the report was created)
$ cd /ligo/groups/cal/H1/reports
$ touch 20240311T214031Z/tags/exported
$ touch 20240311T214031Z/tags/tags
$ arx commit 20240311T214031Z